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A Ferris Wheel Is Built Such That the Height H h(t)=67+54sin(π18tπ2)h ( t ) = 67 + 54 \sin \left( \frac { \pi } { 18 } t - \frac { \pi } { 2 } \right)

Question 1

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A Ferris wheel is built such that the height h (in feet) above the ground of a seat on the wheel at time t (in seconds) can be modeled by h(t) =67+54sin(π18tπ2) h ( t ) = 67 + 54 \sin \left( \frac { \pi } { 18 } t - \frac { \pi } { 2 } \right) .The wheel makes one revolution every 36 seconds and the ride begins when t = 0.During the first 36 seconds of the ride,when will a person,who starts at the bottom of the Ferris wheel,be 67 feet above the ground? ​


A) 9 seconds and 22 seconds
B) 9 seconds and 27 seconds
C) 10 seconds and 22 seconds
D) 9 seconds and 17 seconds
E) 10 seconds and 17 seconds

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